I'm going to agree that the DOT is scaled too high. I encounterd this in Jungle Valley on some random mob added by one of the 3.24 mechanics and, moving out of it immediately, it still killed my character with 7K ES and about 17% physical damage reduction (to 85% fire resistance). For a boss fight or known encounter, this is fine. For a random spawn on top of you, maybe not so much ;)
Move from it.
Dys an sohm
Rohs an kyn
Sahl djahs afah
Mah morn narr